<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        var box = {
            'name':'zhangsan',
            'age':18,
            'height':'191cm'
        }

        // var n = box.name;
        // var a = box.age ;
        // var h = box.height;
        // console.log(n,a,h);

        // with(box){
        //     var n = name
        //     var a = age
        //     var h = height
        // }


        // console.log(n,a,h);


    </script>
</body>
</html>